Saw sharpening and clamping device



(No Model.)

A. W. BROUGHTON. SAW SHARPENING AND GLAMPING DB ViGE. No.v259,805. V Patented June 20, 1882.

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U ITED STATES PATENT OFFICE.

ALBA W. BRO UGH TON, OF J() RDAN, NEW YORK.

SAW SHARPENING AND CLAMPING DEVICE.

SPECIFICATION formingpart of Letters Patent No. 259,805, dated June 20, 1882.

I Application filed March 9, 1882. (No model.)

To all whom it may concern: ALBA W. BROUGHTON, .of Jordan, in the county of Onondaga, in the Be it known that 1,

State ofv New York, have invented new and usefulImprovementsin Saw-FilingApparatus, of which the following, taken in connection with the accompanying drawings, is a full,

and exact description;

This invention consists in the combination, with a saw-filing clamp or vise, of certain novel devices for guiding the filein the operation .of filing a saw, and thus greatly facilitating said operation and rendering the same more effective and more accurate.

The invention also consists in the combina tion, with the aforesaidsaw-filing clamp, of an arm adjustably connected to the shank or supporting-arm of one of the clamp-jaws and provided on the free end with a spindle or arbor to receive the eye of a circular saw and support said saw during the process of filing the same, all as hereinafter fully explained, and specifically set forth in the claims.

The invention is fully illustrated in the annexed drawings, wherein Figure'l is a front view of my improved saw-filing apparatus,

Fig. 2, a side view of the same; Fig. 3, a top view; and Fig. 4 is a rear viewof the shank which, in conjunction with an arm projecting therefrom, supports the file-guiding device.

Similar letters of reference indicate corresponding partscured to the front of A represents the stationary jaw of the vise or clamp, said aw being supported by a suit able upright frame, F, adapted to be secured to a work-bench, and having a central post, 9, extended from the jaw to the base F, by which it is seated upo the edge of the work-bench. A pendent sha, G, rigidly attached or integral with the base F, rests against and is sethe work-bench, and effectually sustains thejaw A in its upright position.

A is the movable jaw of the vise or clamp, saidjaw being mounted on a rod, H, which has its lower end restingin a socket, I, secured to the shank G, the faces of-the two jaws being lined with wood, as shown at L L in Figs. 2-

slides a pendent shank, B, which has its feet B, said of said recess there is a vertical slot, f, ex-

tended through the shank.

O is an arm adjustably connected to and rearwardly and upwardly projectingfrom the shank arm having a shoulder, g, which is rounded to fit into the recess 6 of the shank B, so as to allow it to swing radially thereon. By means of a bolt, h, passing through the slot f of the said shank and through an eye in the shoulder g of the arm 0, said arm can be clamped at any desired angle and height on the shank B. 0n the free end of the arm O'is hinged a vertically-vibrating extension, c, and on top of this extensionis pivoted a sleeve or guide, I), in which slides longitudinally a bar or rod, 0. To that end of the rod 0 which points toward the vise is connected a suitable clamp, d, adapted to hold the tip end of the file, as indicated by dotted lines in Figs. 2 and 3 of the drawings.

To the upper end of the shank B is connected a nut, n, in which works a screw-rod, l, which .is extended the length of the jaw A, and is shouldered against the ends thereof, so as to prevent said rod from moving a crank, N, being applied to the end of the rod [for turning the same, and thereby causing the shank B to slide on its guide a.

o designates a pointer which projects from the nut n, and is extended overithe top of the jaw A, for the purpose hereinafter explained.

On the supporting-rod H of thejaw Ais a block, 1', adapted to slide lengthwise the said rod, and provided with asst-screw, by means of which it may be secured at any-desired elevation. The front of the block 1* is provided with a eoncavefaee, in'which rests the circularhead of a lever, 10, which head is pivoted eccentrically on a clamp, m, consisting of a horizontal arm, which is extended to the post 9 of the jaw A, and has pendent lugs l, by which it rests againstsaid post 9. A bolt, 8, passing between the lugs l and through'the post 9, secures the clamp m in position. By depressing the lever 19 on the free end of the clamp m the eccentric head of said lever crowds the rod H with the longitudinally,

jaw A toward the fixed jaw A, and causes the two jaws to grip the saw-blade to be filed.

In order to adapt the apparatus for filing circular as well as all kinds of elongated saws, I provide the post 9 with a series of holes, air, for the bolt s of the clamp m, so as to allow said clamp to be secured at various distances from the top of thejaws A A, and the outer face of the block 1', I provide with a rigid screwthreaded stud-pin, t, which passes through a slot, 12, in an arm, 1),and has 011 its extremity a nut, by meansof which said arm can be clamped in its desired position on the block 1'. The free end of the arm D is provided with a rearwardly-projecting arbor, to, which passes through the eye of the circular saw to be filed, as indicated by dotted lines in the drawings.

The operation of my invention is as follows: If a handsaw or other elongated saw-blade is to be sharpened, said blade is introduced between the two jaws A A, and clamped therein by depressing the leverp. Then the shank B is moved to one end of thejaw A and the arm G raised or lowered and secured at such an angle radially from the shank B as to allow the file clamped on the reciprocating rod 0 to be drawn at the proper angle across the saw-tooth to be filed. After the filing of each teeth the screwrod lis to be turned until the pointer 0 has moved the distance from tooth to tooth,which indicates that the shank B has been carried a corresponding distance along the guide a, and thus allows the file to be applied to the succeeding tooth at the requisite angle.

In filing a circular saw the blade is mounted on the arbor w of the arm D, and the latter is adjusted to support said blade with a portion of its teeth projecting a proper length aboxe the vise in which it is clamped, as shown by dotted lines in Figs. 1, 2, and 3 of the drawings. Then the arm 0 is set on the shank B to carry the file at a proper angle across the tooth of the circular saw, and the saw is turned on the arbor w the distance from tooth to tooth after the filing of each tooth.

In filing handsaws and other elongated sawblades the clamp m is to be connected to the upper holes u of the post 9,- but in filing circular saws said clamp has to be secured to one of the lower holes a and set to clear the edge of the saw, as best seen in Fig. 1 of the drawings.

Having described my invention, what I claim is- 25o,so5 o 1. The combination, with asaw-filing clamp or vise, of an arm extended from the stationary jaw and adapted to slide bodily in a line parallel with theface of said jaw, a sleeve or guide connected to the free end of said arm, a rod or bar sliding longitudinally in said guide, and a file-clamp connected to said rod, all combined as set forth.

2. The combination of thejaw A, provided with the guide a, the shank B, movably connected with said guide, the arm 0, extended radially from and adjustable upon the shank B, the hinged extension 0, pivoted guide b,reciprocatingrod c, and the file-clamp d, as shown and described.

3. The combination of the jaw A, provided with the guide a, the sliding shank B, provided with the vertical recess a and slot f, the arm 0, having the rounded shoulder g, resting in the recess 0, the clamp-bolt h, the hinged armextension 0, pivoted guide I), reciprocating rod 0, and the file-clamp d, all substantially as shown and set forth.

4. The combination, with the jaw A and the shank B, supporting the arm 0, and file-guiding device connected therewith, of the nut a, connected to the shank B, and the screw-rod I, shouldered on the jaw A, as described and shown.

5. Thecombination, with thejaw A and the shank B, supporting the arm 0, and file-guiding devices connected therewith, of the nut a, pointer 0, and adjusting-screw I, combined and operating as described, for the purpose set forth.

6. The combination, with thejaws A A, of the post g, provided with holes u, the sliding block 7", clamp m, cam-lever p, and bolt 5, as described and shown. I

7. The combination, with the jaws A A, of the clam p m, adapted to be set at various heights on the supporting-arms of said jaws, the block '1', provided with the stud-pin t, and the arm D, provided with the slot 2) and with the arbor to, all as described and shown, for the purpose set forth.

In testimony whereof Ihave hereunto signed my name and aifixed my seal in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 27th day of February, 1882.

ALBA W. BROUGHTON. [L. s.]

Witnesses WM. 0. RAYMOND, O. H. DUELL. 

